package com.Collection;
import java.util.Collections;
import java.util.Set;
import java.util.TreeSet;

public class Main78 {
    public static void main(String[] args){
        String[] coins={ "Penny", "nickel", "dime", "Quarter", "dollar"};
        Set<String> set = new TreeSet<String>();
        for(int i=0;i< coins.length;i++){
            set.add(coins[i]);
        }
        System.out.println(Collections.min(set));
        System.out.println(Collections.min(set, String.CASE_INSENSITIVE_ORDER));
        for(int i=0;i<=10;i++){
            System.out.println("-");
        }
        System.out.println("");
        System.out.println(Collections.max(set));
        System.out.println(Collections.max(set, String.CASE_INSENSITIVE_ORDER));
    }
}
